ES247777U - Projection screen. - Google Patents

Projection screen.

Info

Publication number
ES247777U
ES247777U ES1979247777U ES247777U ES247777U ES 247777 U ES247777 U ES 247777U ES 1979247777 U ES1979247777 U ES 1979247777U ES 247777 U ES247777 U ES 247777U ES 247777 U ES247777 U ES 247777U
Authority
ES
Spain
Prior art keywords
housing
support
outlet slot
projection screen
fixing device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
ES1979247777U
Other languages
Spanish (es)
Other versions
ES247777Y (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
reflecta GmbH foto film projektion
Original Assignee
reflecta GmbH foto film projektion
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by reflecta GmbH foto film projektion filed Critical reflecta GmbH foto film projektion
Publication of ES247777U publication Critical patent/ES247777U/en
Application granted granted Critical
Publication of ES247777Y publication Critical patent/ES247777Y/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/58—Projection screens collapsible, e.g. foldable; of variable area

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

Projection screen, with a support and a housing that houses the rolled-up projection screen, and is connected to the support by means of a fixing device that allows a rotation of the housing between a horizontal position of use and a vertical position of rest, parallel to the support, said housing provided with an outlet slot for the projection screen which is located on the upper side of the housing and which has different projection surfaces on different sides, the fixing device being configured in such a way that the housing can be carried two different horizontal positions of use, in each of which the outlet slot is arranged on the upper side of the housing and the projection screen is removable from the housing depending on the position of use in each case with one of the corresponding surfaces projection with its back to the support, characterized in that the fixing device (4) consists of d the parts (12, 13) joined, that by a rotary movement about a rotation axis (15) parallel to the longitudinal axis of the housing (5), whose first part (12) is fixedly connected to the housing on its side (11) opposite the outlet slot (7) and whose second part (13) is rotatably supported on the support (1) transversely to the axis of rotation (15), because the outlet slot (7) of the housing (5) in its vertical resting position, it is arranged approximately in a vertical plane with the longitudinal axis of the housing (5) and the support (1), in a position diametrically opposite to it, and because the two parts (12 and 13) of the fixing device (4) are coupled to each other in terms of movement by means of a gear (19, 20) that when rotating the housing (5) from the vertical position of rest (figure 1) to one of the two horizontal positions of use (figures 2 and 3) forcefully produces a rotary movement of the first part (12) to a position, wherein the outlet slot (7) of the housing (5) is fixed upwards. (Machine-translation by Google Translate, not legally binding)
ES1979247777U 1979-01-20 1979-12-31 PROJECTION SCREEN Expired ES247777Y (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19797901492U DE7901492U1 (en) 1979-01-20 1979-01-20 LIGHT SCREEN

Publications (2)

Publication Number Publication Date
ES247777U true ES247777U (en) 1980-04-01
ES247777Y ES247777Y (en) 1980-11-01

Family

ID=6700241

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1979247777U Expired ES247777Y (en) 1979-01-20 1979-12-31 PROJECTION SCREEN

Country Status (4)

Country Link
US (1) US4312568A (en)
EP (1) EP0013926B1 (en)
DE (2) DE7901492U1 (en)
ES (1) ES247777Y (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006261A1 (en) * 1980-02-20 1981-08-27 Mechanische Weberei Gmbh, 4792 Bad Lippspringe Multi surface projection screen - has double roll of double side screens in common housing with single upright
DE3115177C1 (en) * 1981-04-15 1982-11-11 Reflecta Gmbh Foto Film Projektion, 8540 Schwabach Projection screen
US5523880A (en) * 1994-07-27 1996-06-04 Draper Shade & Screen Co., Inc. Projection screen masking system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE619862C (en) * 1935-10-08 Eduard Mayer Meggenhofen screen
US2774421A (en) * 1937-10-06 1956-12-18 Kurt S Lion Heat-reflecting light-transmitting window shade or the like and material for use in manufacturing the same
US2377553A (en) * 1943-08-23 1945-06-05 Da Lite Screen Company Inc Portable reversible screen construction
US2787320A (en) * 1955-12-14 1957-04-02 Schultz Charles Dual faced photographic screen

Also Published As

Publication number Publication date
EP0013926A1 (en) 1980-08-06
US4312568A (en) 1982-01-26
DE7901492U1 (en) 1979-04-26
EP0013926B1 (en) 1981-11-11
ES247777Y (en) 1980-11-01
DE3060074D1 (en) 1982-01-14

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Legal Events

Date Code Title Description
FD1K Utility model lapsed

Effective date: 20001009